Heinrich Hertz

Heinrich Hertz and the Transmission of Electromagnetic Waves

Heinrich Hertz and the Transmission of Electromagnetic Waves

On November 13, 1886, German physicist Heinrich Hertz succeeded to transmit electromagnetic waves from a sender to a receiver in Karlsruhe. Hertz conclusively proved the existence of the electromagnetic waves theorized by James Clerk Maxwell’s electromagnetic theory of light. The unit of frequency – cycle per second – was named the “hertz” in his honor. Heinrich Hertz studied science and engineering in Dresden, Munich, and Berlin under Gustav R. Kirchhoff and Hermann von…
Read more
Oliver Lodge and the Development of Radio Technology

Oliver Lodge and the Development of Radio Technology

On June 12, 1851, British physicist Sir Oliver Joseph Lodge was born. Lodge was involved in the development of, and holder of key patents for radio. He identified electromagnetic radiation independent of Hertz‘ proof and at his 1894 Royal Institution lectures, Lodge demonstrated an early radio wave detector he named the “coherer“.[4] Oliver Lodge joined his father’s business at the age of fourteen, becoming an agent selling Purbeck blue clay to the potteries,…
Read more
Alexander Popov and his Radio Receiver

Alexander Popov and his Radio Receiver

On March 4, 1859, Russian physicist Alexander Stepanovich Popov was born. Alexander Popov is acclaimed in his homeland and eastern European countries as the inventor of radio. In 1895 he presented a paper on a wireless lightning detector he had built that worked via using a coherer to detect radio noise from lightning strikes. Born in the town Krasnoturinsk, Sverdlovsk Oblast in the Urals as the son of a priest, Popov became interested in…
Read more
Robert Alexander Watson-Watt and the Radar Technology

Robert Alexander Watson-Watt and the Radar Technology

On February 26, 1935, British engineer and Fellow of the Royal Society Robert Alexander Watson-Watt started with first experiments on detecting and locating aircrafts with radio technique, later called ‘RADAR‘. Radar was initially nameless and researched elsewhere but it was greatly expanded on 1 September 1936 when Watson-Watt became Superintendent of Bawdsey Research Station located in Bawdsey Manor, near Felixstowe, Suffolk. Work there resulted in the design and installation of aircraft detection and…
Read more
Guglielmo Marconi and his Magic Machine

Guglielmo Marconi and his Magic Machine

Guglielmo Marconi (1874-1937) On December 12, 1901, Italian born engineer Guglielmo Marconi succeeded with the very first radio transmission across the Atlantic, by receiving the first transatlantic radio signal at Signal Hill in St John’s, Newfoundland transmitted by the Marconi company’s new high-power station at Poldhu ,Cornwall. The distance between sender and receiver was about 3,500 kilometres (2,200 mi) and with this groundbreaking long distance record the era of wireless telecommunication started. Guglielmo…
Read more
Germany’s First Radio Program Goes Public

Germany’s First Radio Program Goes Public

Distribution of the Radio to the German Public during World War II © Deutsches Bundesarchiv On October 29, 1923 the very first radio program in Germany was broadcasted from the Vox-Haus in Berlin, Tiergarten. The history of the radio is long and for many years it was not clear, who the official inventor of the radio really was. To mention is of course Thomas Edison in the first place, who invented the…
Read more
Relation Browser
Timeline
0 Recommended Articles:
0 Recommended Articles: